RE: Caesarian births directly affecting human evolution
December 6, 2016 at 1:49 pm
(This post was last modified: December 6, 2016 at 1:50 pm by The Grand Nudger.)
OTOH, those that may have been weeded out once upon a time might also carry some heretofore unknown but one day completely necessary trait, themselves. As far as evolution goes, in a world with c sections those genes aren't a selective pressure anyway, which makes them no different than any other neutral heritable trait, of which we have a great many. We haven't upended evolution, or sidestepped it. The metrics have changed, as they always do.
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